Tack-pulling machine.



"No. 746,306. 4 PATENTED DEC. 8, 1903. b 0. L. EATON.

TACK PULLING MACHINE.

APPLIGATION FILED AUG. 7, 1902.

N0 MODEL. 2 SHEETS-SHEET 1.

ii I

mtnesses." lhbeni'or; %JMM@ fik No. 746,306. PATENTED DEC.8,1'903.

C.L.EATON.

TACK PULLING MACHINE.

v APPLICATION FILED AUG. 7, 1902. NO MODEL. 2 SHEETS-SHEET 2.

Wl'l fneascs: I aa lzvfjnizzr; 6 x ence atgm UN T D" STATES PatentedDecember 8, 1903.

PATENT. OFFICE.

CLARENCE L EATON, E BINGI-IAMTON, NEW YORK.

TAVCK-PULLING MACHINE.

SPECIFICATION forming part of Letters Patent No. 746,306, dated December8, 1903. Application filed August 7, 1902. Serial Nn. 11 8,'7'74=. (Nomodel.)

- to be a full, clear, and exact description of the invention,such aswill enable others skilled in the art to which it appertains to make anduse the same.

The present invention relates to tack-pulling machines, and has for itsobject to produce a simple and cheap machine adapted to remove thelasting-tacks from a lasted boot or shoe prior to the securing togetherby the welt-sewing machine of the upper, insole, and welt.

After a shoe has been lasted it is permitted to set for a short periodof time, usually about twenty-four hours, before the lasting tacks areremoved in order that whenr'emoved the upper will retain the shapeimparted thereto by the lasting-machine and will not be dis placedduring the operation of the welt-sewing machine 'in sewing together theupper, welt, and insole. The lasting-tacks, how ever, must be removedbefore the welt, upper, and insole can be stitched together, for thereason that unless they are removed there is great danger of breaking orinjuring the needle as it passes through the meeting edges ofthe upperand welt and the lip of the insole. It has been heretofore proposed toprovide a welt-sewing machine with atack-pulling attachment designed andintended to remove lasting tacks as the sewing progresses andimmediately in advance of the action of the needle; but the efforts inthis direction have proved unsuccessful, for the reason, that thepresence of the tack-puller tended to complicate the machine and to putupon the operating mechanism thereof an additional burden, which had atendency to cause irregular operation of the sewing mechanism. It hasalso been proposed to provide independent tack-pulling machines; butthey have generally been of a complicated and expensive character andfor that reason have not come into use.

The object of the presentinvention is to provide a simple machine of acompact and effiywork-bench, table, or other support.

cient construction composed ot' few parts and requiring but littlepower' to operate it and which shall be of small size, so that it can beplaced upon a work-bench in convenientjuxtaposition to the welt-sewingmachine, so that the operator prior to the presentation of the lastedshoe to the operation of the welt-sewing machinem'ay quickly removethelasted tacks from the shoe.

To the above ends the presentinvention consists of the devices andcombinations which will be hereinafter described and claimed.

The present invention is illustrated in the accompanying drawings, inwhich Figure 1 shows the machine in front eleva tion with the shoe shownimposition to have its lasted tacks removed. Fig. 2 shows a top planview of the machine. Fig. 3 shows the machine in side elevation. Fig. 4.shows in perspective one of the tack-pullers removed from the machine,and Fig. 5 shows in perspective the guard or foot which cooperates withthe tack-puller.

Similar referencecharacters will be employed throughout thespecification and draw-.

ings to designate corresponding parts.

' The machine comprises 'a suitable frame consisting of a standard '1,having a base 2, which may be fastened by bolts "3 upon a (Not shown.)At the upper end of the standard 1 the frame is provided with thebearing 4, in which is mounted to turn the shaft 5, having at one endthe fast and loose pulleys 6 and 7, driven by a belt from any suitablesource of power to produce a rapid rotation of the shaft 5.

At the forward end of the shaft 5 is seen red, by means of a set-screw8,a head 9, which carries diametrically arranged with relation to eachother the tack-pullers 10, two such tack pullers being shown inthedrawings; but it is obvious that their number may be increased,ifdesired. The tack-pullers 10 are provided with beveled-ends 11", inwhich are formed notches 12, arranged to engage the head of the tack'for'the purpose of withdrawing the tack from the lastedshoe.

Cooperating with the tack-pulling devices 10 is a curved guard 13, whichsurrounds and incloses a portion of the path of movement of thetack-pullers and which at its lower end is provided with a closed slot14:, the forward end of which is Vshaped, as shown at 15, and arrangedto receive and position the tacks in line to be operated upon by thetack-pullers 10, as shown clearly in Fig. 1 of the drawings.

It is essential that the notch in the guard or foot 13 may be positionedwith relation to the tack-pullers so that the beveled end of thetack-pullers will engage the tacks just as they reach and are about topass the lowermost point in their path of movement, and for this purposethe tack-pullers are arranged to be adjusted on the head 9, and theguard or foot 13is adjustably connected by means of a bolt 16, whichtakes in a slot 17, formed in the outer end of the curved arm 18, bymeans of which the foot or guard 13 may be adjusted in the arc of acircle so as to properly position the notch 15 with relation to the pathof movement of the tack-pullers 10.

The arm 18 is fastened by a bolt 19 to the top of the bearing 4 and maybe adjusted thereon by means of a slot 20, so that the notch 15 in thefoot or arm 13 may be accurately positioned with relation to the notches12 in the tack-pullers 10. The tack-pullers are provided with slots 21and are held to the head 9 by means of screws 22.

In operation after the tack-pullers and the guard or foot 13 have beenadjusted with relation to each other the shaft 5 is rapidly revolved, soas to cause a rotation of the tackpullers 10 in the direction of thearrow shown in Fig. 1, and the shoeis held in the hands of the operatorwith its sole portion in close contact with the under face of the guardor foot 13 and moved forward in the direction shown by the arrow on theshoe, and as the tack reaches the notch in the guard or foot 13 it willbe in a position to be engaged by that tack-puller which may be at thattime in the position shown in Fig. 1 of the drawings, and as thetack-puller engages the head of the tack it quickly removes it from theshoe and throws it out of the way.

It will be noted that the tack-pulling device in its engagement with thetack expends its thrust against a fixed abutment-namely, the notched end15 of the slot 14s0 that there will be no jar or vibration imparted tothe hands of the operator caused by the engagement of the tack-pullerwith the tack, and thus the operator is enabled to hold and position theshoe without the necessity of overcoming the shocks and jars incident tothe operation of the machine.

Having described my invention, I claim as new and desire to secure byLetters Patent of the United States- 1. In a tack-pulling machine, thecombination with a rotating head and a tack-puller carried thereby, of acurved guard or foot provided with a closed slot against one end ofwhich the tack is held to be acted upon by the tack-puller,substantially as described.

2. In a tack-pulling machine, the combina tion with a rotating head andatack-puller carried thereby, of an adjustable guard or foot providedwith a closed slot notched at one end, substantially as described.

3. In a tack-pulling machine, the combination witha rotating tack-pullerhaving a tackengaging edge parallel with the axis of rotation, of aguard or foot against which the tacks are held, and means for relativelyad justing the tack-puller and the guard or foot to secure thepositioning of the tacks in proper relation to the path of movement ofthe tack-puller, substantially as described.

4. In a tack-pulling machine, the combination of a movable tack-pullerand a guard or foot provided with an abutment arranged transversely tothe line of movement of said tack-puller and against which the tacks areheld, substantially as described.

In testimony whereof I afiix my signature in presence of two witnesses.

CLARENCE L. EATON.

Witnesses:

T. HART ANDERSON, WM. F. FRENDENREICH.

